Quote:
Originally Posted by codemonkey
consider the Atik 314L+ (my specific one) has read noise in the area of 3.6e, which is about 0.02% of my full well capacity, which is clearly insignificant even when tripled to match the difference in 2x2 binning. I'd rather keep the read noise in and blow out less stars.
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Actually, after thinking about that a bit more, that's not very smart ;-)
Even if 3.6e- is 0.02% of my full well capacity, most of the signal I care about would be way below that capacity and so the read noise would have a more significant contribution than I first thought. As for whether it's still actually significant I'm not sure. Needs more reading/experimentation/math before I'd be happy to take a stance of which side of the trade-off I'd prefer to lean towards.
Either way, using PY doesn't preclude the use of binning.
Another thing to consider is the choice of PY; is it actually better to get more green signal? The reason cameras peak in green is because apparently us humans are more sensitive to that area of the spectrum so maybe it's more important to get clearer signal there.
Yet another factor there is what are the major contributors of light pollution and sky glow? Would there be a better choice than PY to reduce the capture unwanted signal which screws us over twofold by capturing signal we don't want and increasing our shot noise?